YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | 21.48 | d | 28.65 | d | 37.30 | d | 46.59 | a | 51.52 | 50.61 | 41.76 | a | 32.45 | 15.76 | a | 17.13 | a | 34.32 | b | |||
1930 | 8.77 | a | 22.18 | 17.46 | c | 33.50 | 35.32 | 45.17 | 50.61 | 49.77 | a | 40.67 | 33.47 | a | 20.90 | 8.00 | k | 32.53 | a | |||||||
1931 | 14.66 | b | 21.92 | d | 19.28 | f | 30.62 | d | 35.42 | e | 46.69 | a | 49.67 | a | 48.67 | d | 45.81 | d | 33.85 | d | 23.76 | e | 16.59 | d | 33.42 | a |
1932 | 10.46 | c | 22.92 | d | 16.62 | b | 31.30 | c | 40.15 | e | 44.54 | d | 50.88 | e | 50.96 | d | 42.65 | d | 30.77 | e | 22.84 | e | 11.41 | d | 31.29 | |
1933 | 14.38 | e | 8.46 | d | 23.00 | d | 26.16 | e | 36.59 | d | 48.25 | f | 52.27 | e | 51.00 | d | 45.09 | h | 36.19 | e | 25.81 | d | 24.00 | e | 29.79 | b |
1934 | 17.74 | d | 24.17 | d | 25.50 | i | 32.09 | g | 33.30 | d | 33.42 | d | 40.04 | f | 40.30 | h | 27.87 | g | 33.96 | g | 26.30 | j | 17.38 | g | 27.16 | h |
1935 | 21.50 | g | 22.00 | i | 24.48 | j | ----- | z | ----- | z | 43.38 | q | 49.25 | g | 51.12 | e | 43.12 | f | 32.38 | e | 15.55 | h | ----- | z | 41.75 | j |
1936 | ----- | z | 9.09 | g | 10.67 | g | 16.36 | e | 27.47 | l | 36.91 | s | 42.45 | t | 50.81 | o | 42.56 | l | 30.22 | v | ----- | z | ----- | z | 16.36 | k |
1937 | 5.75 | k | 14.00 | h | 21.33 | g | 29.33 | f | 41.45 | i | 47.40 | e | 51.65 | e | 53.04 | f | ----- | z | 35.64 | f | 21.70 | g | 16.84 | f | 49.53 | j |
1938 | 14.92 | g | 20.62 | d | 26.28 | f | 29.27 | d | 37.42 | g | 49.04 | f | 50.80 | f | 50.87 | p | 46.46 | f | 36.31 | e | 20.18 | h | 18.16 | f | 28.73 | i |
1939 | 14.92 | f | 9.24 | g | 25.04 | f | 30.46 | d | 39.76 | f | 44.83 | f | 50.29 | g | 49.12 | e | 54.70 | g | 33.13 | 23.82 | b | 19.96 | e | 31.30 | g | |
1940 | 12.23 | e | 16.29 | a | 23.64 | c | 28.80 | y | 39.60 | k | 45.65 | d | 51.32 | c | 48.16 | 44.93 | a | 35.17 | a | 14.55 | a | 15.87 | 30.78 | b | ||
1941 | 17.06 | 22.00 | 23.19 | 28.90 | 40.16 | 43.83 | 48.97 | 49.48 | 42.33 | 34.10 | 23.03 | ----- | z | 33.92 | a | |||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 13.62 | 19.82 | 20.90 | 28.36 | 36.89 | 44.16 | 50.86 | 49.88 | 43.03 | 33.78 | 21.31 | 17.49 | 31.29 | |||||||||||||
S.D. | 3.32 | 5.15 | 3.09 | 4.93 | 2.55 | 4.50 | 1.09 | 1.10 | 1.96 | 1.75 | 4.04 | 4.22 | 0.0 | |||||||||||||
SKEW | -0.17 | -1.53 | -0.57 | -1.72 | 0.17 | -1.96 | -0.57 | -0.23 | 0.38 | 0.00 | -0.81 | 0.17 | 0.00 | |||||||||||||
MAX | 17.74 | 24.17 | 23.64 | 33.50 | 40.16 | 47.40 | 52.27 | 51.12 | 45.81 | 36.31 | 25.81 | 24.00 | 31.29 | |||||||||||||
MIN | 8.77 | 8.46 | 16.62 | 16.36 | 33.30 | 33.42 | 48.97 | 48.16 | 40.67 | 30.77 | 14.55 | 11.41 | 31.29 | |||||||||||||
YRS | 7 | 8 | 6 | 9 | 7 | 8 | 8 | 9 | 6 | 10 | 8 | 6 | 1 |